Varispeed AC Varispeed AC 1 Environmentally Friendly World’s World’s Applications/Advantages Input Voltage and Current Output Voltage and Current Input Voltage Output Voltage Input Current Output Current M Power Supply Motor Varispeed AC Input Waveform Comparison with Conventional General - Purpose Inverter Input Waveform Comparison with Conventional General - Purpose Inverter (Diode Rectified-PWM Inverter) Conventional General - Purpose Inverter Varispeed AC Input Waveform Input Waveform Input Voltage Input Voltage Input Current Input Current .
Spectrum Spectrum Total Harmonic Distortion 100% 90% 80% Total Harmonic Distortion 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 70% 60% 50% 40% 30% 20% 10% 0% 1 5 7 11 13 17 19 21 23 25 29 31 33 37 total 1 5 7 11 13 17 19 21 23 25 29 31 33 37 total Fundamental Wave Fundamental Wave Harmonics Harmonics 90 % 90 % = Approx. Total Harmonic Distortion ( Current ) % 85 = Approx. Total Harmonic Distortion ( Current ) % 7 less distortion less distortion Test Conditions: One transformer, rated load, input voltage distortion is 1% or less. Without reactor, rated load. : 5 No harmonics with innovative technology.
Without peripheral devices, the input current waveform becomes sinusoidal, similar to that of a commercia power supply, so the harmonic pollution of the power supply is minimized for the protection of surroundin machinery. The available power system capacity can be increased, and the regulations on harmonics easily met